That sums up Poly's pretty well. You can try things such as hybriding to extend the life of your strings but it doesn't overcome how the poly loses elasticity. That's also one of the ultra downfalls...

Wait, looking at the dates of your post, its my understanding that your son went through two pairs of barricades in three months? In july, you sent in a pair of 7.5 shoes, got an 8.5 shoe for him in...